Add vertex-batching to Wii U port
Should remove the last bit of lag that port has (like the Labyrinth fight where you team-up with Curly)
This commit is contained in:
Clownacy
parent
9925c16b29
commit
f6fe0537ed
1 changed files with 260 additions and 150 deletions
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@ -25,6 +25,15 @@
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#include "WiiUShaders/texture.gsh.h"
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#include "WiiUShaders/texture_colour_key.gsh.h"
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typedef enum RenderMode
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{
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MODE_BLANK,
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MODE_DRAW_SURFACE,
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MODE_DRAW_SURFACE_WITH_TRANSPARENCY,
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MODE_COLOUR_FILL,
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MODE_DRAW_GLYPH
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} RenderMode;
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typedef struct RenderBackend_Surface
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{
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GX2Texture texture;
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@ -62,6 +71,11 @@ typedef struct Vertex
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Coordinate2D texture;
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} Vertex;
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typedef struct VertexBufferSlot
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{
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Vertex vertices[4];
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} VertexBufferSlot;
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static WHBGfxShaderGroup texture_shader;
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static WHBGfxShaderGroup texture_colour_key_shader;
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static WHBGfxShaderGroup colour_fill_shader;
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@ -80,6 +94,90 @@ static RenderBackend_Surface *glyph_destination_surface;
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static Viewport tv_viewport;
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static Viewport drc_viewport;
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static VertexBufferSlot *local_vertex_buffer;
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static unsigned long local_vertex_buffer_size;
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static unsigned long current_vertex_buffer_slot;
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static RenderMode last_render_mode;
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static RenderBackend_Surface *last_source_surface;
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static RenderBackend_Surface *last_destination_surface;
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static VertexBufferSlot* GetVertexBufferSlot(unsigned int slots_needed)
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{
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// Check if buffer needs expanding
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if (current_vertex_buffer_slot + slots_needed > local_vertex_buffer_size)
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{
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local_vertex_buffer_size = 1;
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while (current_vertex_buffer_slot + slots_needed > local_vertex_buffer_size)
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local_vertex_buffer_size <<= 1;
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VertexBufferSlot *realloc_result = (VertexBufferSlot*)realloc(local_vertex_buffer, local_vertex_buffer_size * sizeof(VertexBufferSlot));
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if (realloc_result != NULL)
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{
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local_vertex_buffer = realloc_result;
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}
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else
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{
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Backend_PrintError("Couldn't expand vertex buffer");
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return NULL;
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}
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}
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current_vertex_buffer_slot += slots_needed;
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return &local_vertex_buffer[current_vertex_buffer_slot - slots_needed];
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}
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static void FlushVertexBuffer(void)
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{
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static unsigned long vertex_buffer_size;
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static unsigned int current_vertex_buffer = 0;
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if (current_vertex_buffer_slot == 0)
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return;
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// Make sure the buffers aren't currently being used before we modify them
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GX2DrawDone();
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// Upload vertex buffer to VBO, growing it if necessary
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if (local_vertex_buffer_size > vertex_buffer_size)
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{
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vertex_buffer_size = local_vertex_buffer_size;
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GX2RDestroyBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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vertex_buffer.flags = (GX2RResourceFlags)(GX2R_RESOURCE_BIND_VERTEX_BUFFER |
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GX2R_RESOURCE_USAGE_CPU_READ |
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GX2R_RESOURCE_USAGE_CPU_WRITE |
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GX2R_RESOURCE_USAGE_GPU_READ);
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vertex_buffer.elemSize = sizeof(VertexBufferSlot);
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vertex_buffer.elemCount = vertex_buffer_size;
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if (GX2RCreateBuffer(&vertex_buffer))
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{
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void *vertex_pointer = GX2RLockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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memcpy(vertex_pointer, local_vertex_buffer, vertex_buffer_size * sizeof(VertexBufferSlot));
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GX2RUnlockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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}
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}
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else
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{
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void *vertex_pointer = GX2RLockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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memcpy(vertex_pointer, local_vertex_buffer, current_vertex_buffer_slot * sizeof(VertexBufferSlot));
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GX2RUnlockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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}
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GX2DrawEx(GX2_PRIMITIVE_MODE_QUADS, 4 * current_vertex_buffer_slot, 0, 1);
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current_vertex_buffer_slot = 0;
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}
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static void CalculateViewport(unsigned int actual_screen_width, unsigned int actual_screen_height, Viewport *viewport)
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{
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if ((float)actual_screen_width / (float)actual_screen_height > (float)framebuffer_surface->width / (float)framebuffer_surface->height)
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@ -136,80 +234,63 @@ RenderBackend_Surface* RenderBackend_Init(const char *window_title, int screen_w
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WHBGfxInitShaderAttribute(&glyph_shader, "input_texture_coordinates", 1, 0, GX2_ATTRIB_FORMAT_FLOAT_32_32);
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WHBGfxInitFetchShader(&glyph_shader);
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// Initialise vertex position buffer
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vertex_buffer.flags = (GX2RResourceFlags)(GX2R_RESOURCE_BIND_VERTEX_BUFFER |
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GX2R_RESOURCE_USAGE_CPU_READ |
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GX2R_RESOURCE_USAGE_CPU_WRITE |
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GX2R_RESOURCE_USAGE_GPU_READ);
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vertex_buffer.elemSize = sizeof(Vertex);
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vertex_buffer.elemCount = 4;
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// Initialise sampler
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GX2InitSampler(&sampler, GX2_TEX_CLAMP_MODE_CLAMP, GX2_TEX_XY_FILTER_MODE_LINEAR);
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if (GX2RCreateBuffer(&vertex_buffer))
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// Create framebuffer surface
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framebuffer_surface = RenderBackend_CreateSurface(screen_width, screen_height, true);
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if (framebuffer_surface != NULL)
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{
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// Initialise sampler
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GX2InitSampler(&sampler, GX2_TEX_CLAMP_MODE_CLAMP, GX2_TEX_XY_FILTER_MODE_LINEAR);
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// Create a 'context' (this voodoo magic can be used to undo `GX2SetColorBuffer`,
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// allowing us to draw to the screen once again)
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gx2_context = (GX2ContextState*)aligned_alloc(GX2_CONTEXT_STATE_ALIGNMENT, sizeof(GX2ContextState));
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// Create framebuffer surface
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framebuffer_surface = RenderBackend_CreateSurface(screen_width, screen_height, true);
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if (framebuffer_surface != NULL)
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if (gx2_context != NULL)
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{
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// Create a 'context' (this voodoo magic can be used to undo `GX2SetColorBuffer`,
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// allowing us to draw to the screen once again)
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gx2_context = (GX2ContextState*)aligned_alloc(GX2_CONTEXT_STATE_ALIGNMENT, sizeof(GX2ContextState));
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memset(gx2_context, 0, sizeof(GX2ContextState));
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GX2SetupContextStateEx(gx2_context, TRUE);
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GX2SetContextState(gx2_context);
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if (gx2_context != NULL)
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// Disable depth-test (enabled by default for some reason)
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GX2SetDepthOnlyControl(FALSE, FALSE, GX2_COMPARE_FUNC_ALWAYS);
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// Calculate centred viewports
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switch (GX2GetSystemTVScanMode())
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{
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memset(gx2_context, 0, sizeof(GX2ContextState));
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GX2SetupContextStateEx(gx2_context, TRUE);
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GX2SetContextState(gx2_context);
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// For now, we have to match WUT's broken behaviour (its `GX2TVScanMode`
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// enum is missing values, and the rest are off-by-one)
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//case GX2_TV_SCAN_MODE_576I:
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case GX2_TV_SCAN_MODE_480I: // Actually 576i
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case GX2_TV_SCAN_MODE_480P: // Actually 480i
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CalculateViewport(854, 480, &tv_viewport);
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break;
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// Disable depth-test (enabled by default for some reason)
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GX2SetDepthOnlyControl(FALSE, FALSE, GX2_COMPARE_FUNC_ALWAYS);
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case GX2_TV_SCAN_MODE_720P: // Actually 480p
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default: // Funnel the *real* 1080p into this
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CalculateViewport(1280, 720, &tv_viewport);
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break;
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// Calculate centred viewports
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switch (GX2GetSystemTVScanMode())
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{
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// For now, we have to match WUT's broken behaviour (its `GX2TVScanMode`
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// enum is missing values, and the rest are off-by-one)
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//case GX2_TV_SCAN_MODE_576I:
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case GX2_TV_SCAN_MODE_480I: // Actually 576i
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case GX2_TV_SCAN_MODE_480P: // Actually 480i
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CalculateViewport(854, 480, &tv_viewport);
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break;
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case GX2_TV_SCAN_MODE_720P: // Actually 480p
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default: // Funnel the *real* 1080p into this
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CalculateViewport(1280, 720, &tv_viewport);
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break;
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case GX2_TV_SCAN_MODE_1080I: // Actually invalid
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case GX2_TV_SCAN_MODE_1080P: // Actually 1080i
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CalculateViewport(1920, 1080, &tv_viewport);
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break;
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}
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CalculateViewport(854, 480, &drc_viewport);
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return framebuffer_surface;
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}
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else
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{
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Backend_PrintError("Couldn't allocate memory for the GX2 context");
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case GX2_TV_SCAN_MODE_1080I: // Actually invalid
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case GX2_TV_SCAN_MODE_1080P: // Actually 1080i
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CalculateViewport(1920, 1080, &tv_viewport);
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break;
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}
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RenderBackend_FreeSurface(framebuffer_surface);
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CalculateViewport(854, 480, &drc_viewport);
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return framebuffer_surface;
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}
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else
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{
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Backend_PrintError("Couldn't create the framebuffer surface");
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Backend_PrintError("Couldn't allocate memory for the GX2 context");
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}
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GX2RDestroyBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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RenderBackend_FreeSurface(framebuffer_surface);
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}
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else
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{
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Backend_PrintError("Couldn't create the vertex buffer");
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Backend_PrintError("Couldn't create the framebuffer surface");
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}
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WHBGfxFreeShaderGroup(&glyph_shader);
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@ -268,6 +349,11 @@ void RenderBackend_Deinit(void)
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void RenderBackend_DrawScreen(void)
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{
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FlushVertexBuffer();
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last_render_mode = MODE_BLANK;
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last_source_surface = NULL;
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last_destination_surface = NULL;
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// Make sure the buffers aren't currently being used before we modify them
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GX2DrawDone();
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@ -503,124 +589,143 @@ void RenderBackend_Blit(RenderBackend_Surface *source_surface, const RenderBacke
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if (source_surface == NULL || destination_surface == NULL)
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return;
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// Make sure the buffers aren't currently being used before we modify them
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GX2DrawDone();
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const RenderMode render_mode = (colour_key ? MODE_DRAW_SURFACE_WITH_TRANSPARENCY : MODE_DRAW_SURFACE);
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Vertex *vertex_pointer = (Vertex*)GX2RLockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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// Set vertex position buffer
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const float destination_left = x;
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const float destination_top = y;
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const float destination_right = x + (rect->right - rect->left);
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const float destination_bottom = y + (rect->bottom - rect->top);
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vertex_pointer[0].position.x = destination_left;
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vertex_pointer[0].position.y = destination_top;
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vertex_pointer[1].position.x = destination_right;
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vertex_pointer[1].position.y = destination_top;
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vertex_pointer[2].position.x = destination_right;
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vertex_pointer[2].position.y = destination_bottom;
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vertex_pointer[3].position.x = destination_left;
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vertex_pointer[3].position.y = destination_bottom;
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for (unsigned int i = 0; i < 4; ++i)
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// Flush vertex data if a context-change is needed
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if (last_render_mode != render_mode || last_source_surface != source_surface || last_destination_surface != destination_surface)
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{
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vertex_pointer[i].position.x /= destination_surface->width;
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vertex_pointer[i].position.x *= 2.0f;
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vertex_pointer[i].position.x -= 1.0f;
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FlushVertexBuffer();
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vertex_pointer[i].position.y /= destination_surface->height;
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vertex_pointer[i].position.y *= -2.0f;
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vertex_pointer[i].position.y += 1.0f;
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last_render_mode = render_mode;
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last_source_surface = source_surface;
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last_destination_surface = destination_surface;
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// Draw to the selected texture, instead of the screen
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GX2SetColorBuffer(&destination_surface->colour_buffer, GX2_RENDER_TARGET_0);
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GX2SetViewport(0.0f, 0.0f, (float)destination_surface->colour_buffer.surface.width, (float)destination_surface->colour_buffer.surface.height, 0.0f, 1.0f);
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GX2SetScissor(0, 0, destination_surface->colour_buffer.surface.width, destination_surface->colour_buffer.surface.height);
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// Select shader
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WHBGfxShaderGroup *shader = colour_key ? &texture_colour_key_shader : &texture_shader;
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// Bind it
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GX2SetFetchShader(&shader->fetchShader);
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GX2SetVertexShader(shader->vertexShader);
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GX2SetPixelShader(shader->pixelShader);
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// Bind misc. data
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GX2SetPixelSampler(&sampler, shader->pixelShader->samplerVars[0].location);
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GX2SetPixelTexture(&source_surface->texture, shader->pixelShader->samplerVars[0].location);
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GX2RSetAttributeBuffer(&vertex_buffer, 0, sizeof(Vertex), offsetof(Vertex, position));
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GX2RSetAttributeBuffer(&vertex_buffer, 1, sizeof(Vertex), offsetof(Vertex, texture));
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}
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// Set texture coordinate buffer
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vertex_pointer[0].texture.x = rect->left / (float)source_surface->width;
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vertex_pointer[0].texture.y = rect->top / (float)source_surface->height;
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vertex_pointer[1].texture.x = rect->right / (float)source_surface->width;
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vertex_pointer[1].texture.y = rect->top / (float)source_surface->height;
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vertex_pointer[2].texture.x = rect->right / (float)source_surface->width;
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vertex_pointer[2].texture.y = rect->bottom / (float)source_surface->height;
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vertex_pointer[3].texture.x = rect->left / (float)source_surface->width;
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vertex_pointer[3].texture.y = rect->bottom / (float)source_surface->height;
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VertexBufferSlot *vertex_buffer_slot = GetVertexBufferSlot(1);
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GX2RUnlockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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if (vertex_buffer_slot != NULL)
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{
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// Set vertex position buffer
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const float destination_left = x;
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const float destination_top = y;
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const float destination_right = x + (rect->right - rect->left);
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const float destination_bottom = y + (rect->bottom - rect->top);
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// Draw to the selected texture, instead of the screen
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GX2SetColorBuffer(&destination_surface->colour_buffer, GX2_RENDER_TARGET_0);
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GX2SetViewport(0.0f, 0.0f, (float)destination_surface->colour_buffer.surface.width, (float)destination_surface->colour_buffer.surface.height, 0.0f, 1.0f);
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GX2SetScissor(0, 0, destination_surface->colour_buffer.surface.width, destination_surface->colour_buffer.surface.height);
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vertex_buffer_slot->vertices[0].position.x = destination_left;
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vertex_buffer_slot->vertices[0].position.y = destination_top;
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vertex_buffer_slot->vertices[1].position.x = destination_right;
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vertex_buffer_slot->vertices[1].position.y = destination_top;
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vertex_buffer_slot->vertices[2].position.x = destination_right;
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vertex_buffer_slot->vertices[2].position.y = destination_bottom;
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vertex_buffer_slot->vertices[3].position.x = destination_left;
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vertex_buffer_slot->vertices[3].position.y = destination_bottom;
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// Select shader
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WHBGfxShaderGroup *shader = colour_key ? &texture_colour_key_shader : &texture_shader;
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for (unsigned int i = 0; i < 4; ++i)
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{
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vertex_buffer_slot->vertices[i].position.x /= destination_surface->width;
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vertex_buffer_slot->vertices[i].position.x *= 2.0f;
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vertex_buffer_slot->vertices[i].position.x -= 1.0f;
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// Bind it
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GX2SetFetchShader(&shader->fetchShader);
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GX2SetVertexShader(shader->vertexShader);
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GX2SetPixelShader(shader->pixelShader);
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vertex_buffer_slot->vertices[i].position.y /= destination_surface->height;
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vertex_buffer_slot->vertices[i].position.y *= -2.0f;
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vertex_buffer_slot->vertices[i].position.y += 1.0f;
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}
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// Bind misc. data
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GX2SetPixelSampler(&sampler, shader->pixelShader->samplerVars[0].location);
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GX2SetPixelTexture(&source_surface->texture, shader->pixelShader->samplerVars[0].location);
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GX2RSetAttributeBuffer(&vertex_buffer, 0, sizeof(Vertex), offsetof(Vertex, position));
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GX2RSetAttributeBuffer(&vertex_buffer, 1, sizeof(Vertex), offsetof(Vertex, texture));
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// Draw
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GX2DrawEx(GX2_PRIMITIVE_MODE_QUADS, 4, 0, 1);
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// Set texture coordinate buffer
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vertex_buffer_slot->vertices[0].texture.x = rect->left / (float)source_surface->width;
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vertex_buffer_slot->vertices[0].texture.y = rect->top / (float)source_surface->height;
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vertex_buffer_slot->vertices[1].texture.x = rect->right / (float)source_surface->width;
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vertex_buffer_slot->vertices[1].texture.y = rect->top / (float)source_surface->height;
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vertex_buffer_slot->vertices[2].texture.x = rect->right / (float)source_surface->width;
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vertex_buffer_slot->vertices[2].texture.y = rect->bottom / (float)source_surface->height;
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vertex_buffer_slot->vertices[3].texture.x = rect->left / (float)source_surface->width;
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vertex_buffer_slot->vertices[3].texture.y = rect->bottom / (float)source_surface->height;
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}
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}
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void RenderBackend_ColourFill(RenderBackend_Surface *surface, const RenderBackend_Rect *rect, unsigned char red, unsigned char green, unsigned char blue)
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{
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static unsigned char last_red;
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static unsigned char last_green;
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static unsigned char last_blue;
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if (surface == NULL)
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return;
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// Make sure the buffers aren't currently being used before we modify them
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GX2DrawDone();
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Vertex *vertex_pointer = (Vertex*)GX2RLockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
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// Set vertex position buffer
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vertex_pointer[0].position.x = rect->left;
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vertex_pointer[0].position.y = rect->top;
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vertex_pointer[1].position.x = rect->right;
|
||||
vertex_pointer[1].position.y = rect->top;
|
||||
vertex_pointer[2].position.x = rect->right;
|
||||
vertex_pointer[2].position.y = rect->bottom;
|
||||
vertex_pointer[3].position.x = rect->left;
|
||||
vertex_pointer[3].position.y = rect->bottom;
|
||||
|
||||
for (unsigned int i = 0; i < 4; ++i)
|
||||
// Flush vertex data if a context-change is needed
|
||||
if (last_render_mode != MODE_COLOUR_FILL || last_destination_surface != surface || last_red != red || last_green != green || last_blue != blue)
|
||||
{
|
||||
vertex_pointer[i].position.x /= surface->width;
|
||||
vertex_pointer[i].position.x *= 2.0f;
|
||||
vertex_pointer[i].position.x -= 1.0f;
|
||||
FlushVertexBuffer();
|
||||
|
||||
vertex_pointer[i].position.y /= surface->height;
|
||||
vertex_pointer[i].position.y *= -2.0f;
|
||||
vertex_pointer[i].position.y += 1.0f;
|
||||
last_render_mode = MODE_COLOUR_FILL;
|
||||
last_source_surface = NULL;
|
||||
last_destination_surface = surface;
|
||||
last_red = red;
|
||||
last_green = green;
|
||||
last_blue = blue;
|
||||
|
||||
// Draw to the selected texture, instead of the screen
|
||||
GX2SetColorBuffer(&surface->colour_buffer, GX2_RENDER_TARGET_0);
|
||||
GX2SetViewport(0, 0, (float)surface->colour_buffer.surface.width, (float)surface->colour_buffer.surface.height, 0.0f, 1.0f);
|
||||
GX2SetScissor(0, 0, (float)surface->colour_buffer.surface.width, (float)surface->colour_buffer.surface.height);
|
||||
|
||||
// Set the colour-fill... colour
|
||||
const float uniform_colours[4] = {red / 255.0f, green / 255.0f, blue / 255.0f, 1.0f};
|
||||
GX2SetPixelUniformReg(colour_fill_shader.pixelShader->uniformVars[0].offset, 4, (uint32_t*)&uniform_colours);
|
||||
|
||||
// Bind the colour-fill shader
|
||||
GX2SetFetchShader(&colour_fill_shader.fetchShader);
|
||||
GX2SetVertexShader(colour_fill_shader.vertexShader);
|
||||
GX2SetPixelShader(colour_fill_shader.pixelShader);
|
||||
|
||||
// Bind misc. data
|
||||
GX2RSetAttributeBuffer(&vertex_buffer, 0, sizeof(Vertex), offsetof(Vertex, position));
|
||||
}
|
||||
|
||||
GX2RUnlockBufferEx(&vertex_buffer, (GX2RResourceFlags)0);
|
||||
VertexBufferSlot *vertex_buffer_slot = GetVertexBufferSlot(1);
|
||||
|
||||
// Draw to the selected texture, instead of the screen
|
||||
GX2SetColorBuffer(&surface->colour_buffer, GX2_RENDER_TARGET_0);
|
||||
GX2SetViewport(0, 0, (float)surface->colour_buffer.surface.width, (float)surface->colour_buffer.surface.height, 0.0f, 1.0f);
|
||||
GX2SetScissor(0, 0, (float)surface->colour_buffer.surface.width, (float)surface->colour_buffer.surface.height);
|
||||
if (vertex_buffer_slot != NULL)
|
||||
{
|
||||
// Set vertex position buffer
|
||||
vertex_buffer_slot->vertices[0].position.x = rect->left;
|
||||
vertex_buffer_slot->vertices[0].position.y = rect->top;
|
||||
vertex_buffer_slot->vertices[1].position.x = rect->right;
|
||||
vertex_buffer_slot->vertices[1].position.y = rect->top;
|
||||
vertex_buffer_slot->vertices[2].position.x = rect->right;
|
||||
vertex_buffer_slot->vertices[2].position.y = rect->bottom;
|
||||
vertex_buffer_slot->vertices[3].position.x = rect->left;
|
||||
vertex_buffer_slot->vertices[3].position.y = rect->bottom;
|
||||
|
||||
// Set the colour-fill... colour
|
||||
const float uniform_colours[4] = {red / 255.0f, green / 255.0f, blue / 255.0f, 1.0f};
|
||||
GX2SetPixelUniformReg(colour_fill_shader.pixelShader->uniformVars[0].offset, 4, (uint32_t*)&uniform_colours);
|
||||
for (unsigned int i = 0; i < 4; ++i)
|
||||
{
|
||||
vertex_buffer_slot->vertices[i].position.x /= surface->width;
|
||||
vertex_buffer_slot->vertices[i].position.x *= 2.0f;
|
||||
vertex_buffer_slot->vertices[i].position.x -= 1.0f;
|
||||
|
||||
// Bind the colour-fill shader
|
||||
GX2SetFetchShader(&colour_fill_shader.fetchShader);
|
||||
GX2SetVertexShader(colour_fill_shader.vertexShader);
|
||||
GX2SetPixelShader(colour_fill_shader.pixelShader);
|
||||
|
||||
// Bind misc. data
|
||||
GX2RSetAttributeBuffer(&vertex_buffer, 0, sizeof(Vertex), offsetof(Vertex, position));
|
||||
|
||||
// Draw
|
||||
GX2DrawEx(GX2_PRIMITIVE_MODE_QUADS, 4, 0, 1);
|
||||
vertex_buffer_slot->vertices[i].position.y /= surface->height;
|
||||
vertex_buffer_slot->vertices[i].position.y *= -2.0f;
|
||||
vertex_buffer_slot->vertices[i].position.y += 1.0f;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
RenderBackend_Glyph* RenderBackend_LoadGlyph(const unsigned char *pixels, unsigned int width, unsigned int height, int pitch)
|
||||
|
|
@ -692,6 +797,11 @@ void RenderBackend_UnloadGlyph(RenderBackend_Glyph *glyph)
|
|||
|
||||
void RenderBackend_PrepareToDrawGlyphs(RenderBackend_Surface *destination_surface, const unsigned char *colour_channels)
|
||||
{
|
||||
FlushVertexBuffer();
|
||||
last_render_mode = MODE_BLANK;
|
||||
last_source_surface = NULL;
|
||||
last_destination_surface = NULL;
|
||||
|
||||
if (destination_surface == NULL)
|
||||
return;
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue