birth-software/bloat-buster
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Store pixel coordinate instead of normalized value

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David Gonzalez Martin 2024-11-09 17:52:01 -06:00 committed by David
parent 5e3e5c9f50
commit c80e574f01
2 changed files with 16 additions and 11 deletions
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21
bootstrap/bloat-buster/gui.c
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@ -24,14 +24,11 @@
if (unlikely(result != VK_SUCCESS && result != VK_SUBOPTIMAL_KHR)) wrong_vulkan_result(result, strlit(#call), strlit(__FILE__), __LINE__); \ if (unlikely(result != VK_SUCCESS && result != VK_SUBOPTIMAL_KHR)) wrong_vulkan_result(result, strlit(#call), strlit(__FILE__), __LINE__); \
} while(0) } while(0)
STRUCT(Matrix4x4)
{
float m[4][4];
};
STRUCT(GPUDrawPushConstants) STRUCT(GPUDrawPushConstants)
{ {
VkDeviceAddress vertex_buffer; VkDeviceAddress vertex_buffer;
f32 width;
f32 height;
}; };
fn u8 vk_layer_is_supported(String layer_name) fn u8 vk_layer_is_supported(String layer_name)
@ -979,23 +976,25 @@ void run_app(Arena* arena)
Vec4 color; Vec4 color;
}; };
Vec4 color = { .v = { 1.0f, 0.0f, 0.0f, 1.0f } }; Vec4 color = { .v = { 1.0f, 0.0f, 0.0f, 1.0f } };
auto width_float = (f32)initial_width;
auto height_float = (f32)initial_height;
Vertex vertices[] = { Vertex vertices[] = {
{ {
.position = { .v = { 0.5, -0.5, 0, 1 } }, .position = { .v = { (3 * width_float) / 4, height_float / 4, 0.0f, 1.0f } },
.color = color, .color = color,
}, },
{ {
.position = { .v = { 0.5, 0.5, 0, 1 } }, .position = { .v = { (3 * width_float) / 4, (3 * height_float) / 4, 0.0f, 1.0f } },
.color = color, .color = color,
}, },
{ {
.position = { .v = { -0.5, -0.5, 0, 1 } }, .position = { .v = { width_float / 4, height_float / 4, 0.0f, 1.0f } },
.color = color, .color = color,
}, },
{ {
.position = { .v = { -0.5, 0.5, 0, 1 } }, .position = { .v = { width_float / 4, (3 * height_float) / 4, 0.0f, 1.0f } },
.color = color, .color = color,
}, },
}; };
@ -1153,6 +1152,8 @@ void run_app(Arena* arena)
// typedef void (VKAPI_PTR *PFN_vkCmdPushConstants)(VkCommandBuffer commandBuffer, VkPipelineLayout layout, VkShaderStageFlags stageFlags, uint32_t offset, uint32_t size, const void* pValues); // typedef void (VKAPI_PTR *PFN_vkCmdPushConstants)(VkCommandBuffer commandBuffer, VkPipelineLayout layout, VkShaderStageFlags stageFlags, uint32_t offset, uint32_t size, const void* pValues);
GPUDrawPushConstants push_constants = { GPUDrawPushConstants push_constants = {
.vertex_buffer = vertex_buffer_device_address, .vertex_buffer = vertex_buffer_device_address,
.width = (f32)width,
.height = (f32)height,
}; };
VkShaderStageFlags shader_stage_flags = VK_SHADER_STAGE_VERTEX_BIT; VkShaderStageFlags shader_stage_flags = VK_SHADER_STAGE_VERTEX_BIT;
u32 push_constant_offset = 0; u32 push_constant_offset = 0;

6
bootstrap/shaders/triangle.vert
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@ -17,15 +17,19 @@ layout(buffer_reference, std430) readonly buffer VertexBuffer{
layout( push_constant ) uniform constants layout( push_constant ) uniform constants
{ {
VertexBuffer vertexBuffer; VertexBuffer vertexBuffer;
float width;
float height;
} PushConstants; } PushConstants;
void main() void main()
{ {
//load vertex data from device address //load vertex data from device address
Vertex v = PushConstants.vertexBuffer.vertices[gl_VertexIndex]; Vertex v = PushConstants.vertexBuffer.vertices[gl_VertexIndex];
float width = PushConstants.width;
float height = PushConstants.height;
//output data //output data
gl_Position = v.position; gl_Position = vec4(2 * v.position.x / width - 1, 1 - (2 * v.position.y) / height, v.position.z, v.position.w);
outColor = v.color; outColor = v.color;
//debugPrintfEXT("Position: (%f, %f, %f)\n", v.position.x, v.position.y, v.position.z); //debugPrintfEXT("Position: (%f, %f, %f)\n", v.position.x, v.position.y, v.position.z);
//debugPrintfEXT("Color: (%f, %f, %f)\n", v.color.x, v.color.y, v.color.z); //debugPrintfEXT("Color: (%f, %f, %f)\n", v.color.x, v.color.y, v.color.z);